Iowa 2016 vs 2024: county swing
93 of 99 counties moved toward the Republican ticket; 1 changed hands.
| County | 2016 | 2024 | Swing | Votes 2016 | Votes 2024 |
|---|---|---|---|---|---|
| Decatur County | R+29.3 | R+47.0 | R+17.7 | 3,734 | 3,727 |
| Chickasaw County | R+23.0 | R+37.2 | R+14.2 | 6,435 | 6,230 |
| Clarke County | R+28.0 | R+42.0 | R+14.0 | 4,454 | 4,459 |
| Clinton County | R+5.1 | R+18.8 | R+13.7 | 23,067 | 23,813 |
| Buchanan County | R+15.0 | R+28.2 | R+13.2 | 10,252 | 10,714 |
| Jackson County | R+19.3 | R+32.5 | R+13.2 | 10,310 | 10,782 |
| Louisa County | R+28.4 | R+41.0 | R+12.6 | 5,008 | 5,136 |
| Clayton County | R+22.7 | R+34.5 | R+11.8 | 9,129 | 9,381 |
| Lee County | R+16.0 | R+27.8 | R+11.8 | 16,151 | 16,154 |
| Ringgold County | R+39.6 | R+51.3 | R+11.7 | 2,707 | 2,683 |
| Howard County | R+20.5 | R+31.8 | R+11.3 | 4,559 | 4,837 |
| Wayne County | R+45.9 | R+57.2 | R+11.3 | 2,940 | 3,119 |
| Fayette County | R+19.3 | R+30.4 | R+11.1 | 9,975 | 9,817 |
| Taylor County | R+44.7 | R+55.8 | R+11.1 | 3,029 | 3,078 |
| Wapello County | R+20.6 | R+31.5 | R+10.9 | 15,149 | 14,571 |
| Floyd County | R+14.9 | R+25.7 | R+10.8 | 8,060 | 7,625 |
| Hamilton County | R+22.6 | R+33.3 | R+10.7 | 7,694 | 7,573 |
| Appanoose County | R+36.1 | R+46.6 | R+10.5 | 6,136 | 6,466 |
| Lucas County | R+37.6 | R+48.1 | R+10.5 | 4,354 | 4,639 |
| Keokuk County | R+41.1 | R+51.5 | R+10.4 | 4,985 | 5,142 |
| Poweshiek County | R+6.5 | R+16.9 | R+10.4 | 9,833 | 9,971 |
| Carroll County | R+31.6 | R+41.9 | R+10.3 | 10,544 | 11,120 |
| Adair County | R+34.9 | R+45.1 | R+10.2 | 3,811 | 4,064 |
| Allamakee County | R+24.1 | R+34.3 | R+10.2 | 6,923 | 7,303 |
| Delaware County | R+29.6 | R+39.6 | R+10.0 | 9,241 | 10,112 |
| Monroe County | R+41.0 | R+50.7 | R+9.7 | 3,865 | 4,146 |
| Greene County | R+23.4 | R+33.0 | R+9.6 | 4,821 | 4,874 |
| Webster County | R+21.5 | R+31.1 | R+9.6 | 17,430 | 16,706 |
| Davis County | R+44.9 | R+54.4 | R+9.5 | 3,882 | 3,950 |
| Hardin County | R+28.9 | R+38.4 | R+9.5 | 8,533 | 8,434 |
| Jasper County | R+18.2 | R+27.6 | R+9.4 | 19,034 | 20,149 |
| Palo Alto County | R+35.8 | R+45.0 | R+9.2 | 4,703 | 4,976 |
| Pocahontas County | R+45.0 | R+54.0 | R+9.0 | 3,865 | 3,573 |
| Muscatine County | R+6.2 | R+14.9 | R+8.7 | 19,434 | 19,695 |
| Union County | R+27.4 | R+36.1 | R+8.7 | 5,832 | 5,996 |
| Butler County | R+36.8 | R+45.4 | R+8.6 | 7,513 | 8,027 |
| Bremer County | R+13.6 | R+22.1 | R+8.5 | 13,538 | 14,556 |
| Buena Vista County | R+24.7 | R+33.2 | R+8.5 | 8,278 | 7,516 |
| Winneshiek County | R+0.8 | R+9.3 | R+8.5 | 11,362 | 11,927 |
| Des Moines County | R+6.9 | R+15.0 | R+8.1 | 19,103 | 18,998 |
| Franklin County | R+33.6 | R+41.7 | R+8.1 | 4,968 | 4,885 |
| Van Buren County | R+47.3 | R+55.4 | R+8.1 | 3,561 | 3,622 |
| Kossuth County | R+36.2 | R+44.1 | R+7.9 | 8,607 | 8,376 |
| Boone County | R+13.7 | R+21.5 | R+7.8 | 14,196 | 15,346 |
| Audubon County | R+30.9 | R+38.5 | R+7.6 | 3,412 | 3,239 |
| Benton County | R+25.7 | R+33.2 | R+7.5 | 13,844 | 14,470 |
| Madison County | R+31.1 | R+38.6 | R+7.5 | 8,636 | 9,995 |
| Dubuque County | R+1.2 | R+8.6 | R+7.4 | 49,721 | 52,566 |
| Jones County | R+19.0 | R+26.3 | R+7.3 | 10,133 | 10,949 |
| Marshall County | R+8.3 | R+15.6 | R+7.3 | 17,980 | 17,217 |
| Marion County | R+30.7 | R+37.8 | R+7.1 | 17,816 | 19,490 |
| Mitchell County | R+24.0 | R+31.1 | R+7.1 | 5,417 | 5,757 |
| Emmet County | R+37.1 | R+44.0 | R+6.9 | 4,753 | 4,786 |
| Hancock County | R+40.7 | R+47.4 | R+6.7 | 5,871 | 5,933 |
| Calhoun County | R+40.1 | R+46.7 | R+6.6 | 5,159 | 5,093 |
| Tama County | R+20.3 | R+26.9 | R+6.6 | 8,752 | 8,594 |
| Worth County | R+21.7 | R+28.2 | R+6.5 | 4,257 | 4,278 |
| Jefferson County | R+0.5 | R+6.8 | R+6.3 | 8,156 | 8,317 |
| Mahaska County | R+45.3 | R+51.6 | R+6.3 | 10,632 | 10,910 |
| Black Hawk County | D+7.3 | D+1.2 | R+6.1 | 64,405 | 62,653 |
| Crawford County | R+37.9 | R+43.5 | R+5.6 | 6,935 | 6,525 |
| Cherokee County | R+40.2 | R+45.7 | R+5.5 | 6,258 | 6,089 |
| Henry County | R+30.6 | R+36.0 | R+5.4 | 9,404 | 9,574 |
| Scott County flipped | D+1.5 | R+3.9 | R+5.4 | 86,220 | 89,743 |
| Guthrie County | R+33.0 | R+38.0 | R+5.0 | 5,750 | 6,514 |
| Sac County | R+46.6 | R+51.6 | R+5.0 | 5,212 | 5,448 |
| Wright County | R+31.6 | R+36.5 | R+4.9 | 6,026 | 5,706 |
| Adams County | R+39.4 | R+44.2 | R+4.8 | 2,106 | 2,131 |
| Harrison County | R+37.2 | R+41.8 | R+4.6 | 7,465 | 7,938 |
| Warren County | R+16.2 | R+20.8 | R+4.6 | 27,300 | 32,662 |
| Humboldt County | R+45.5 | R+50.0 | R+4.5 | 5,087 | 5,067 |
| Monona County | R+40.9 | R+45.4 | R+4.5 | 4,572 | 4,616 |
| Winnebago County | R+26.2 | R+30.7 | R+4.5 | 5,787 | 5,627 |
| Fremont County | R+40.2 | R+44.6 | R+4.4 | 3,595 | 3,785 |
| Dickinson County | R+35.7 | R+40.0 | R+4.3 | 10,354 | 11,192 |
| Washington County | R+20.4 | R+24.4 | R+4.0 | 10,929 | 11,551 |
| Cedar County | R+17.8 | R+21.7 | R+3.9 | 9,541 | 10,624 |
| Cerro Gordo County | R+7.7 | R+11.6 | R+3.9 | 22,965 | 22,942 |
| Iowa County | R+23.9 | R+27.7 | R+3.8 | 8,904 | 9,617 |
| Woodbury County | R+19.5 | R+23.1 | R+3.6 | 43,718 | 42,674 |
| Grundy County | R+38.9 | R+41.8 | R+2.9 | 6,872 | 7,131 |
| Lyon County | R+67.0 | R+69.9 | R+2.9 | 6,377 | 6,984 |
| Osceola County | R+61.6 | R+64.3 | R+2.7 | 3,213 | 3,219 |
| Plymouth County | R+51.5 | R+54.2 | R+2.7 | 13,190 | 13,931 |
| Sioux County | R+68.7 | R+71.1 | R+2.4 | 18,194 | 18,881 |
| Story County | D+12.3 | D+10.4 | R+1.9 | 50,667 | 49,200 |
| Ida County | R+51.6 | R+53.4 | R+1.8 | 3,612 | 3,642 |
| Cass County | R+39.4 | R+40.7 | R+1.3 | 7,125 | 7,195 |
| Clay County | R+42.1 | R+43.2 | R+1.1 | 8,617 | 8,514 |
| O'Brien County | R+59.9 | R+61.0 | R+1.1 | 7,406 | 7,501 |
| Shelby County | R+42.4 | R+43.0 | R+0.6 | 6,370 | 6,486 |
| Mills County | R+38.7 | R+39.1 | R+0.4 | 7,698 | 8,223 |
| Polk County | D+11.3 | D+10.9 | R+0.4 | 231,555 | 255,563 |
| Johnson County | D+37.8 | D+38.1 | D+0.3 | 76,940 | 86,068 |
| Linn County | D+9.0 | D+9.9 | D+0.9 | 117,098 | 122,369 |
| Pottawattamie County | R+21.3 | R+20.0 | D+1.3 | 42,680 | 44,411 |
| Page County | R+43.8 | R+42.4 | D+1.4 | 7,044 | 7,297 |
| Montgomery County | R+42.0 | R+39.1 | D+2.9 | 5,044 | 5,061 |
| Dallas County | R+9.6 | R+4.8 | D+4.8 | 38,252 | 62,633 |
Official results As published by The American Presidency Project (UC Santa Barbara) and the state documents it links. How we use this data